Improvement in window-screens



T. KELLs.

Window-Screens. l N0,151,599, Parentedju'ne 2,1874.

\ Mgg A,

UNITED STATES PATENT OFFICEo THOMAS KELLS, OF GREEN POINT, NFV YORK.

IMPROVEMENT IN WINDOW-SCREENS.

Specification forming part of Letters Patent No. 151,599, dated J une 2,1874; application filed March 11, 1874.

To all whom it may concern:

Be it known that I, THOMAS KELLS, of Green Point, in the county of Kingsand State of New York, have invented a new and useful Improvement inMosquito-Screens for l/Vindows, of which the following is a specica-JtiOn: l

Figure l is a face view of my improved mosquito-screen, showing itapplied to a window. Fig.l 2 is a horizontal section on the line c c,Fig. l 5 and Fig. 3 is a detail side view of the screen case or shell.

Similar letters of reference indicate corresponding parts in all theiigures.

The object of this invention is to provide for a convenient andeconomical attachment of a mosquito net or screen to a window, and forits convenient removal at any time when it may not be needed.

The invention consists in providing a roller, which is placed at oneside of the windowsash, within a slotted surrounding` shell, and aroundwhich roller the mosquito-screen is wound with a cord, which will windaround the roller when the mosquito-net is unwound, and which willenable a person desiring to wind up the net, by stretching the cord, tore volve the roller, and thereby wind up as much of the net as may benecessary.

In the accompanying drawing, the letter A represents a window-frame ofsuitable kind, and B the lower sash thereof, Fig. l showing such lowersash raised. O is a preferably about semi-cylindrical shell or case,within which a roller, D, has its bearings, the ends of the rollerhaving suitable gudgeons that enter sockets or bearings in the closedends of the shell C. At one side the shell is entirely open, asindicated in Fig. 2, and with this open side the shellis to be placedagainst the window-sash B, but in close proximity to one side of thewindow casing or frame A. All ordinary windows have an inner bead-lin-Y. ing inside of the sashes, and against this linconcealed within theshell C, when it is not intended to be used; but when to be used,

-it is withdrawn from the shell and unwound from the roller, in themanner indicated in Fig. 2-that is to say, it passes from the rollertoward the sash B, between the sash and the edge i of the case O, asshown, and thence along the face of the sash toward the opposite side ofthe frame A, there to be attached by suitable means to such frame A. Themeans I prefer to use for this latter-named purpose consists in the useof a bar, a, which lines the loose end of the mosquito-net, and which,when placed against the frame A, can be readilylocked thereto by a hook,b, or other suitable means. A cord, d, is also wound around the roller Din opposite direction to the way in which the net E is wound around theSame, the end of such cord passing out through a slot, g, of the shellC. By means of this cord, the roller D can be readily turned wheneverthe cord is pulled, and the net E thereby stretched-that is to say, theroller turned in such way as to wind up as much of the net as isnecessary' to hold the same stretched.

Vhen it is desired to dispense temporarily only with the use of the net,it is only necessary to unloosen the fastening b, and to pull the cordd, so as to wind the entire net upon thc roller D, and then again whenit is desired to use the net E in front of the window, it is onlynecessary to pull 4on the rod a and carrythe same. toward the oppositeside ofthe frame A, and lock it to the fastening b. But when it isdesired to entirely dispense with the net E for a longer period-as, forexample, during` the colder seasons-it is very easy to detach the shellO, with all its appurtenances, from the frame A by merely lifting itslightly, and withdrawing it from the holding-screws c. The entireapparatus can then be placed away conveniently, and kept ready forfurther usc.

I do not broadly claim the combination of a mosquitdnet, roller, andshell, but

The combination of the cord d with the roller D, mosquito-net E, andsurrounding slotted shell G, all arranged for operation substantially asdescribed.

THOMAS KELLS.

Titnesses A. V. BRIEsEN, DAVID KELLs.

